Sound waves travel through the air, ground, and water. When a tree is cut down, it creates vibrations in the air that travel outward in all directions. These vibrations can be heard by animals that are close enough to the tree.

The distance at which an animal can hear a sound depends on the loudness of the sound and the sensitivity of the animal's hearing. For example, a loud sound can be heard from a greater distance than a quiet sound. And an animal with sensitive hearing can hear sounds that are too faint for other animals to hear.

In the forest, there are many animals that have very sensitive hearing. These animals include deer, rabbits, squirrels, and birds. When a tree is cut down, these animals can hear the sound from a long distance away. They may even be able to hear the sound before the tree hits the ground.

The sound of a tree being cut down can be a frightening sound for animals. It can cause them to run away from the area or to hide. In some cases, it can even cause them to die from shock.